While holding the button, plug the TV back in. Continue holding for roughly until an "Upgrading" message or a blinking LED appears.
The file refers to a specific system software update for TCL Smart TVs using the 40-MS08B1-MAD2LG mainboard . This firmware is typically used for the TCL LED49S4900 series and similar smart LED models. Context & Components Download MS08B1 MAD2LG Firmware USB part2 rar
Manual USB updates are often necessary when a TV is stuck on the logo screen (boot looping) or fails to receive over-the-air (OTA) updates. Use a FAT32 formatted USB drive. While holding the button, plug the TV back in
After extracting the multi-part RAR files, place the single firmware file (often named Update.img or a .bin file) into the root directory of the USB drive. Manual Flash Method: Unplug the TV from power. Insert the USB drive into the TV's USB port. This firmware is typically used for the TCL